| #!/usr/bin/env python |
| import os.path |
| import re |
| import sys |
| import tempfile |
| import zipfile |
| import wheel.bdist_wheel |
| import distutils.dist |
| from distutils.archive_util import make_archive |
| from shutil import rmtree |
| from wheel.archive import archive_wheelfile |
| from argparse import ArgumentParser |
| from glob import iglob |
| |
| egg_info_re = re.compile(r'''(^|/)(?P<name>[^/]+?)-(?P<ver>.+?) |
| (-(?P<pyver>.+?))?(-(?P<arch>.+?))?.egg-info(/|$)''', re.VERBOSE) |
| |
| def parse_info(wininfo_name, egginfo_name): |
| """Extract metadata from filenames. |
| |
| Extracts the 4 metadataitems needed (name, version, pyversion, arch) from |
| the installer filename and the name of the egg-info directory embedded in |
| the zipfile (if any). |
| |
| The egginfo filename has the format:: |
| |
| name-ver(-pyver)(-arch).egg-info |
| |
| The installer filename has the format:: |
| |
| name-ver.arch(-pyver).exe |
| |
| Some things to note: |
| |
| 1. The installer filename is not definitive. An installer can be renamed |
| and work perfectly well as an installer. So more reliable data should |
| be used whenever possible. |
| 2. The egg-info data should be preferred for the name and version, because |
| these come straight from the distutils metadata, and are mandatory. |
| 3. The pyver from the egg-info data should be ignored, as it is |
| constructed from the version of Python used to build the installer, |
| which is irrelevant - the installer filename is correct here (even to |
| the point that when it's not there, any version is implied). |
| 4. The architecture must be taken from the installer filename, as it is |
| not included in the egg-info data. |
| 5. Architecture-neutral installers still have an architecture because the |
| installer format itself (being executable) is architecture-specific. We |
| should therefore ignore the architecture if the content is pure-python. |
| """ |
| |
| egginfo = None |
| if egginfo_name: |
| egginfo = egg_info_re.search(egginfo_name) |
| if not egginfo: |
| raise ValueError("Egg info filename %s is not valid" % |
| (egginfo_name,)) |
| |
| # Parse the wininst filename |
| # 1. Distribution name (up to the first '-') |
| w_name, sep, rest = wininfo_name.partition('-') |
| if not sep: |
| raise ValueError("Installer filename %s is not valid" % |
| (wininfo_name,)) |
| # Strip '.exe' |
| rest = rest[:-4] |
| # 2. Python version (from the last '-', must start with 'py') |
| rest2, sep, w_pyver = rest.rpartition('-') |
| if sep and w_pyver.startswith('py'): |
| rest = rest2 |
| w_pyver = w_pyver.replace('.', '') |
| else: |
| # Not version specific - use py2.py3. While it is possible that |
| # pure-Python code is not compatible with both Python 2 and 3, there |
| # is no way of knowing from the wininst format, so we assume the best |
| # here (the user can always manually rename the wheel to be more |
| # restrictive if needed). |
| w_pyver = 'py2.py3' |
| # 3. Version and architecture |
| w_ver, sep, w_arch = rest.rpartition('.') |
| if not sep: |
| raise ValueError("Installer filename %s is not valid" % |
| (wininfo_name,)) |
| |
| if egginfo: |
| w_name = egginfo.group('name') |
| w_ver = egginfo.group('ver') |
| |
| return dict(name=w_name, ver=w_ver, arch=w_arch, pyver=w_pyver) |
| |
| def bdist_wininst2wheel(path, dest_dir=os.path.curdir): |
| bdw = zipfile.ZipFile(path) |
| |
| # Search for egg-info in the archive |
| egginfo_name = None |
| for filename in bdw.namelist(): |
| if '.egg-info' in filename: |
| egginfo_name = filename |
| break |
| |
| info = parse_info(os.path.basename(path), egginfo_name) |
| |
| root_is_purelib = True |
| for zipinfo in bdw.infolist(): |
| if zipinfo.filename.startswith('PLATLIB'): |
| root_is_purelib = False |
| break |
| if root_is_purelib: |
| paths = {'purelib': ''} |
| else: |
| paths = {'platlib': ''} |
| |
| dist_info = "%(name)s-%(ver)s" % info |
| datadir = "%s.data/" % dist_info |
| |
| # rewrite paths to trick ZipFile into extracting an egg |
| # XXX grab wininst .ini - between .exe, padding, and first zip file. |
| members = [] |
| egginfo_name = '' |
| for zipinfo in bdw.infolist(): |
| key, basename = zipinfo.filename.split('/', 1) |
| key = key.lower() |
| basepath = paths.get(key, None) |
| if basepath is None: |
| basepath = datadir + key.lower() + '/' |
| oldname = zipinfo.filename |
| newname = basepath + basename |
| zipinfo.filename = newname |
| del bdw.NameToInfo[oldname] |
| bdw.NameToInfo[newname] = zipinfo |
| # Collect member names, but omit '' (from an entry like "PLATLIB/" |
| if newname: |
| members.append(newname) |
| # Remember egg-info name for the egg2dist call below |
| if not egginfo_name: |
| if newname.endswith('.egg-info'): |
| egginfo_name = newname |
| elif '.egg-info/' in newname: |
| egginfo_name, sep, _ = newname.rpartition('/') |
| dir = tempfile.mkdtemp(suffix="_b2w") |
| bdw.extractall(dir, members) |
| |
| # egg2wheel |
| abi = 'none' |
| pyver = info['pyver'] |
| arch = (info['arch'] or 'any').replace('.', '_').replace('-', '_') |
| # Wininst installers always have arch even if they are not |
| # architecture-specific (because the format itself is). |
| # So, assume the content is architecture-neutral if root is purelib. |
| if root_is_purelib: |
| arch = 'any' |
| # If the installer is architecture-specific, it's almost certainly also |
| # CPython-specific. |
| if arch != 'any': |
| pyver = pyver.replace('py', 'cp') |
| wheel_name = '-'.join(( |
| dist_info, |
| pyver, |
| abi, |
| arch |
| )) |
| if root_is_purelib: |
| bw = wheel.bdist_wheel.bdist_wheel(distutils.dist.Distribution()) |
| else: |
| bw = _bdist_wheel_tag(distutils.dist.Distribution()) |
| |
| bw.root_is_pure = root_is_purelib |
| bw.python_tag = pyver |
| bw.plat_name_supplied = True |
| bw.plat_name = info['arch'] or 'any' |
| |
| if not root_is_purelib: |
| bw.full_tag_supplied = True |
| bw.full_tag = (pyver, abi, arch) |
| |
| dist_info_dir = os.path.join(dir, '%s.dist-info' % dist_info) |
| bw.egg2dist(os.path.join(dir, egginfo_name), dist_info_dir) |
| bw.write_wheelfile(dist_info_dir, generator='wininst2wheel') |
| bw.write_record(dir, dist_info_dir) |
| |
| archive_wheelfile(os.path.join(dest_dir, wheel_name), dir) |
| rmtree(dir) |
| |
| |
| class _bdist_wheel_tag(wheel.bdist_wheel.bdist_wheel): |
| # allow the client to override the default generated wheel tag |
| # The default bdist_wheel implementation uses python and abi tags |
| # of the running python process. This is not suitable for |
| # generating/repackaging prebuild binaries. |
| |
| full_tag_supplied = False |
| full_tag = None # None or a (pytag, soabitag, plattag) triple |
| |
| def get_tag(self): |
| if self.full_tag_supplied and self.full_tag is not None: |
| return self.full_tag |
| else: |
| return super(_bdist_wheel_tag, self).get_tag() |
| |
| |
| def main(): |
| parser = ArgumentParser() |
| parser.add_argument('installers', nargs='*', help="Installers to convert") |
| parser.add_argument('--dest-dir', '-d', default=os.path.curdir, |
| help="Directory to store wheels (default %(default)s)") |
| parser.add_argument('--verbose', '-v', action='store_true') |
| args = parser.parse_args() |
| for pat in args.installers: |
| for installer in iglob(pat): |
| if args.verbose: |
| sys.stdout.write("{0}... ".format(installer)) |
| bdist_wininst2wheel(installer, args.dest_dir) |
| if args.verbose: |
| sys.stdout.write("OK\n") |
| |
| if __name__ == "__main__": |
| main() |
